Vehicle-mounted dc high voltage withstand test system and test method thereof

Abstract

This invention discloses a vehicle-mounted DC high-voltage withstand voltage test system and its test method, belonging to the field of withstand voltage test technology. It includes a fixed frame; an adjustment mechanism mounted on the fixed frame; a test device mounted on the adjustment mechanism; and an inflatable equalizing ring, the bottom of which is fixedly connected to the top of the test device. An auxiliary mechanism acts as a traction support when moving the test device. During testing, the angle of the clamping components is adjusted by rotating the components, and the height of the test device is adjusted by extending and retracting the electric telescopic rod, which also limits the movement of the test object. A cylinder lifting device enables the test device to stand upright autonomously. Unloading and loading can be carried out autonomously without external lifting equipment. The auxiliary mechanism allows for traction and movement on flat ground within the testing station, further reducing manpower and material resources and making the testing process more efficient and convenient.

Description

Technical Field

[0001] This invention belongs to the field of withstand voltage testing technology, specifically a vehicle-mounted DC high voltage withstand voltage testing system and its testing method. Background Technology

[0002] With the rapid development of the power industry, DC high-voltage electrical equipment is increasingly widely used in power transmission, substation and other fields. The insulation performance and withstand capability of these devices are directly related to the safe and stable operation of the power system. The vehicle-mounted DC high-voltage withstand voltage test system is an important device used for power equipment testing. As a key piece of equipment for testing such equipment, the vehicle-mounted DC high-voltage withstand voltage test system plays a crucial role. It can simulate a high-voltage environment, conduct rigorous withstand voltage tests on the equipment, promptly detect potential insulation defects, prevent accidents caused by insulation faults during equipment operation, and ensure reliable power supply to the power system. This system typically integrates a high-voltage generator, a control and monitoring system, and a complex mechanical structure, possessing a high degree of professionalism and technical integration. It is an indispensable and important tool in the field of power equipment testing.

[0003] Existing testing equipment is not convenient for limiting the position of the object being tested. Object displacement during testing can easily lead to inaccurate data, and the stability of the equipment is also difficult to guarantee. Furthermore, existing testing equipment often requires a large amount of repetitive and heavy manual temporary construction work, such as building support frames and installing fixing devices. This results in high labor intensity for operators, and errors are prone to occur during the construction process, affecting the accuracy of the test. In addition, the unloading and loading of the testing equipment usually requires the assistance of external lifting equipment, which not only increases costs and time, but also restricts the use of lifting equipment in some site-limited situations, making it impossible to carry out the test smoothly. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary mechanism that acts as a traction support when moving the testing device. During testing, the auxiliary mechanism is mounted on a support rod, and the angle of the clamping components is adjusted by rotating parts. The height of the testing device is adjusted by the extension and retraction of the electric telescopic rod. This prevents the moving wheels from bearing the torque of the DC device tipping over during testing. Simultaneously, the auxiliary mechanism, mounted on the support frame, provides a limiting function for the test object, flexibly limiting its position to accommodate objects of different shapes and sizes, ensuring stable object position during testing, and improving the accuracy of test data. A cylinder lifting device enables the testing device to be transported horizontally and used vertically. On-site, repetitive and heavy manual temporary setup work is eliminated, greatly reducing the labor intensity of operators. The testing device has hydraulic self-erecting capability, and unloading and loading can be completed autonomously without the need for external lifting equipment, saving the cost and time of renting lifting equipment. Furthermore, the auxiliary mechanism enables traction and movement on flat ground within the station, further reducing the input of manpower and resources, making the testing process more efficient and convenient.

[0005] The technical solution adopted in this invention is as follows: a vehicle-mounted DC high-voltage withstand voltage test system, comprising: a fixed frame; an adjustment mechanism disposed on the fixed frame; a test device disposed on the adjustment mechanism; an inflatable equalizing ring, the bottom of which is fixedly connected to the top of the test device; a support component disposed on the fixed frame; and an auxiliary mechanism, wherein multiple sets of auxiliary mechanisms are provided, and the multiple sets of auxiliary mechanisms are respectively disposed on the support component, the fixed frame, and the adjustment mechanism.

[0006] The adjustment mechanism includes an installation component, two sets of pushing components, and two sets of linkage components. The installation component is mounted on a fixed frame, and each set of pushing components and linkage components is mounted on the installation component.

[0007] The mounting components include a fixed plate, two connecting plates, a connecting rod, two mounting bolts, two support frames, and a support plate. The bottom of each connecting plate is fixedly connected to the top of the fixed frame. The connecting rod is rotatably connected between the two connecting plates. The support plate is fixedly sleeved on the outer surface of the connecting rod. One end of the testing device is fixedly connected to the outer surface of one side of the support plate. The fixed plate is rotatably sleeved on the outer surface of the connecting rod. Each mounting bolt passes through the fixed plate and the connecting rod. The bottom of each support frame is fixedly connected to the bottom of the fixed plate.

[0008] Each set of pushing components includes a mounting block, two rotating plates, and a cylinder. The bottom end of the mounting block is fixedly connected to the top of the fixing frame, and the two rotating plates are fixedly connected to both ends of the cylinder. One of the rotating plates is rotatably connected to the mounting block, and the other rotating plate is rotatably connected to the support frame.

[0009] Each set of linkage components includes two connecting blocks, a fixing bolt, and a mounting plate. One end of one of the connecting blocks is fixedly connected to one side of the outer surface of the support plate, and one end of the other connecting block is fixedly connected to one side of the outer surface of the support frame. One end of the mounting plate is rotatably connected to one of the connecting blocks, and the other end of the mounting plate is rotatably connected to the other connecting block through the fixing bolt.

[0010] The supporting component includes four supporting blocks, two supporting rods, and two movable wheels. The bottom of each supporting block is fixedly connected to the top of the fixed frame, both ends of each supporting rod are fixedly connected between the inner walls of the two sides of the fixed frame, and each movable wheel is rotatably connected between the inner walls of the two sides of the fixed frame.

[0011] Each set of auxiliary mechanisms includes an electric telescopic rod, two sets of rotating components, and two sets of clamping components. Each set of rotating components is located at both ends of the electric telescopic rod, and each set of clamping components is located on the rotating components.

[0012] Each set of rotating components includes a connector, an adjusting plate, a mounting box, two mounting gears, a mounting rod, and a mounting motor. One end of the connector is fixedly connected to one end of the electric telescopic rod. The mounting rod is rotatably connected between the inner walls of both sides of the connector. The adjusting plate is fixedly sleeved on the outer surface of the mounting rod. One side of the mounting box is fixedly connected to the outer surface of one side of the connector. One of the mounting gears is fixedly sleeved on the outer surface of the mounting rod. The mounting motor is fixedly connected to the outer surface of one side of the mounting box. The other mounting gear is fixedly sleeved on the output end of the mounting motor. The two mounting gears mesh with each other.

[0013] Each clamping component includes a fixed box, a fixed motor, a bidirectional threaded rod, two limiting rods, and two clamping plates. The bottom of the fixed box is fixedly connected to the top of the adjusting plate. The bidirectional threaded rod is rotatably connected between the inner walls of both sides of the fixed box. The fixed motor is fixedly connected to the outer surface of one side of the fixed box, and one end of the fixed motor is fixedly connected to one end of the bidirectional threaded rod. Both ends of the two limiting rods are fixedly connected between the inner walls of both sides of the fixed box. Each clamping plate is threaded onto the outer surface of the bidirectional threaded rod, and both clamping plates are slidably fitted between the two limiting rods.

[0014] The test method for a vehicle-mounted DC high-voltage withstand voltage test system includes the following steps: Step 1, Moving the test device: When it is necessary to move the test device, turn on the fixed motor. The fixed motor drives the bidirectional threaded rod to rotate. Through the limit of the two limit rods, the two clamping plates are clamped on the support rod. At this time, fix the clamping part on the other end of the electric telescopic rod to the tank transport vehicle. Use a forklift as the power source. The auxiliary mechanism acts as a traction support connected to the forklift. The moving wheels allow for short-distance movement within the station. Step 2, Supporting the Test Device: After transporting the test device to the site, the two clamping plates are clamped onto the support rod by fixing the motor. Then, the installation motor is turned on, which drives one of the installation gears to rotate. Through the meshing of the two installation gears, the installation rod drives the adjustment plate to rotate, thereby driving the clamping component to rotate and support the clamping component on the ground. The four auxiliary mechanisms are installed on the support rod respectively. The height of the test device is adjusted by the electric telescopic rod, and the fixed frame is supported to a height greater than that of the transport chassis. The installation tank transport vehicle is driven away, and then the electric telescopic rod is retracted. The retracted height is greater than the height of the moving wheels, so that the moving wheels do not bear the torque of the DC device tipping over. Step 3: Adjust the test device: Then turn on the cylinder. With the cooperation of the mounting plate, the cylinder pushes the fixed plate, support frame, and support plate. The connecting rod rotates on the two connecting plates, turning the test device to 10°~15°. Inflate the inflatable equalizing ring. After the inflatable equalizing ring is fully inflated, raise the device to 90°. Fix the support plate to one of the support blocks with bolts. Then remove the fixing bolts and mounting bolts. The cylinder places the fixed plate and support frame in a horizontal position, ready for wiring. Enter the test state, place the object to be tested in the fixed plate, and then adjust the auxiliary mechanism to clamp it at any position on the support frame. With the cooperation of the electric telescopic rod and the clamping plate, the object to be tested can be limited and fixed.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In this invention, the auxiliary mechanism can act as a traction support when the test device is moved. During the test, the auxiliary mechanism is installed on the support rod. The angle of the clamping component is adjusted by rotating the component. The height of the test device is adjusted by extending and retracting the electric telescopic rod. During the test, the moving wheel does not bear the torque of the DC device overturning. At the same time, during the test, the auxiliary mechanism is installed on the support frame, which can limit the test object. The test object is flexibly limited to adapt to objects of different shapes and sizes, ensuring the stability of the object position during the test and improving the accuracy of the test data.

[0016] (2) In this invention, the test device is transported horizontally and used vertically through a cylinder lifting device. There is no need for repetitive and heavy manual temporary construction work on site, which greatly reduces the labor intensity of the operators. The test device has hydraulic self-erecting capability, and the unloading and loading work can be completed autonomously without the need for external lifting equipment, saving the cost and time of renting lifting equipment. Moreover, with the cooperation of auxiliary mechanisms, it can be pulled and moved on flat ground within the station, which further reduces the input of manpower and material resources, making the test process more efficient and convenient. Attached Figure Description

[0017] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a frontal perspective sectional view of the present invention; Figure 3 This is a partial frontal perspective view of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of part A; Figure 5 This is a perspective view of the experimental state of the present invention. Figure 6 This is a front view of the auxiliary mechanism of the present invention; Figure 7 This is a side perspective sectional view of the auxiliary mechanism of the present invention. Figure 8 This is a frontal perspective view of some of the auxiliary mechanisms of the present invention; Figure 9 This is a side perspective sectional view of part of the auxiliary mechanism of the present invention.

[0018] The diagram shows the following markings: 1. Fixed frame; 3. Adjusting mechanism; 301. Fixed plate; 302. Support frame; 303. Mounting block; 304. Rotating plate; 305. Cylinder; 306. Mounting plate; 307. Connecting block; 308. Fixing bolt; 309. Support plate; 310. Mounting bolt; 311. Connecting plate; 312. Connecting rod; 4. Test device; 5. Auxiliary mechanism; 501. Electric telescopic rod; 502. Connecting piece; 503. Adjusting plate; 504. Mounting box; 505. Mounting gear; 506. Mounting rod; 507. Mounting motor; 508. Fixed box; 509. Fixed motor; 510. Bidirectional threaded rod; 511. Limiting rod; 512. Clamping plate; 6. Support rod; 7. Support block; 8. Moving wheel; 9. Inflatable equalizing ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] Reference Figures 1-9 This invention provides a technical solution: a vehicle-mounted DC high-voltage withstand voltage test system, comprising: a fixed frame 1; an adjustment mechanism 3, the adjustment mechanism 3 being disposed on the fixed frame 1; a test device 4, the test device 4 being disposed on the adjustment mechanism 3; an inflatable equalizing ring 9, the bottom of the inflatable equalizing ring 9 being fixedly connected to the top of the test device 4; a support component, the support component being disposed on the fixed frame 1; and an auxiliary mechanism 5, the auxiliary mechanism 5 being provided in multiple sets, the multiple sets of auxiliary mechanisms 5 being respectively disposed on the support component, the fixed frame 1, and the adjustment mechanism 3.

[0021] In this implementation scheme: the fixed frame 1 is used to install the adjustment mechanism 3 and the test device 4. The test device 4 is used for high voltage withstand test. The function of the inflatable equalizing ring 9 is to prevent lightning strikes. It is suitable for AC voltage and can evenly distribute the high voltage around the object, ensuring that there is no potential difference between the different parts of the ring, thereby achieving the effect of equalizing the voltage. The support component is used to support the adjustment mechanism 3. The auxiliary mechanism 5 can act as a traction support when moving the test device 4. During the test, it supports and adjusts the height of the test device 4 and limits the test object.

[0022] Specifically, the adjustment mechanism 3 includes an installation component, two sets of pushing components and two sets of linkage components. The installation component is mounted on the fixed frame 1, and each set of pushing components and linkage components is mounted on the installation component.

[0023] In this embodiment: the mounting component is used to mount the test device 4, the two sets of pushing components are used to adjust the angle between the mounting component and the test device 4, and the two sets of linkage components are used to connect the mounting component and the two sets of pushing components.

[0024] Specifically, the mounting components include a fixed plate 301, two connecting plates 311, a connecting rod 312, two mounting bolts 310, two support frames 302, and a support plate 309. The bottom of each connecting plate 311 is fixedly connected to the top of the fixed frame 1. The connecting rod 312 is rotatably connected between the two connecting plates 311. The support plate 309 is fixedly sleeved on the outer surface of the connecting rod 312. One end of the test device 4 is fixedly connected to the outer surface of one side of the support plate 309. The fixed plate 301 is rotatably sleeved on the outer surface of the connecting rod 312. Each mounting bolt 310 passes through the fixed plate 301 and the connecting rod 312. The bottom of each support frame 302 is fixedly connected to the bottom of the fixed plate 301.

[0025] In this embodiment: the fixing plate 301, the support frame 302 and the support plate 309 are provided for mounting and supporting the test device 4, the connecting rod 312 is provided for supporting the support plate 309 and the fixing plate 301, and the two mounting bolts 310 are provided for fixing the support frame 302 and the connecting rod 312.

[0026] Specifically, each set of pushing components includes a mounting block 303, two rotating plates 304 and a cylinder 305. The bottom end of the mounting block 303 is fixedly connected to the top of the fixed frame 1, and the two rotating plates 304 are fixedly connected to both ends of the cylinder 305. One rotating plate 304 is rotatably connected to the mounting block 303, and the other rotating plate 304 is rotatably connected to the support frame 302.

[0027] In this embodiment, the cylinder 305 is rotatably connected to the mounting block 303 and the support frame 302 via the rotating plate 304. The cylinder 305 pushes the fixing plate 301, the support frame 302 and the support plate 309, and rotates on the two connecting plates 311 via the connecting rod 312, thus flipping the test device 4 to different angles. The principle and structure of the cylinder 305 are common knowledge to those skilled in the art and will not be described in detail here. Its model can be selected according to the actual use.

[0028] Specifically, each set of linkage components includes two connecting blocks 307, a fixing bolt 308, and a mounting plate 306. One end of one connecting block 307 is fixedly connected to one side of the outer surface of the support plate 309, and one end of the other connecting block 307 is fixedly connected to one side of the outer surface of the support frame 302. One end of the mounting plate 306 is rotatably connected to one of the connecting blocks 307, and the other end of the mounting plate 306 is rotatably connected to the other connecting block 307 through the fixing bolt 308.

[0029] In this embodiment: the two connecting blocks 307 and the mounting plate 306 are rotatably connected by the fixing bolt 308. The two connecting blocks 307, the fixing bolt 308 and the mounting plate 306 are used to connect the support frame 302 and the support plate 309.

[0030] Specifically, the support components include four support blocks 7, two support rods 6, and two movable wheels 8. The bottom of each support block 7 is fixedly connected to the top of the fixed frame 1, both ends of each support rod 6 are fixedly connected between the inner walls of the two sides of the fixed frame 1, and each movable wheel 8 is rotatably connected between the inner walls of the two sides of the fixed frame 1.

[0031] In this embodiment: four support blocks 7 are provided to support the adjustment mechanism 3, the support rod 6 and the auxiliary mechanism 5, which can realize multiple functions of the auxiliary mechanism 5. The two moving wheels 8 can move the test device 4.

[0032] Specifically, each set of auxiliary mechanisms 5 includes an electric telescopic rod 501, two sets of rotating components and two sets of clamping components. Each set of rotating components is located at both ends of the electric telescopic rod 501, and each set of clamping components is located on the rotating components.

[0033] In this embodiment: the electric telescopic rod 501 is designed with an adjustable length and can act as a traction support when moving the test device 4. During the test, it supports and adjusts the height of the test device 4 and limits the test object. The rotating component is used to adjust the angle of the clamping component. The clamping component allows the auxiliary mechanism 5 to be installed in a suitable position. The principle and structure of the electric telescopic rod 501 are common knowledge to those skilled in the art and will not be described in detail here. Its model can be selected according to the actual use.

[0034] Specifically, each set of rotating components includes a connector 502, an adjusting plate 503, a mounting box 504, two mounting gears 505, a mounting rod 506, and a mounting motor 507. One end of the connector 502 is fixedly connected to one end of the electric telescopic rod 501. The mounting rod 506 is rotatably connected between the inner walls of both sides of the connector 502. The adjusting plate 503 is fixedly sleeved on the outer surface of the mounting rod 506. One side of the mounting box 504 is fixedly connected to one side of the outer surface of the connector 502. One mounting gear 505 is fixedly sleeved on the outer surface of the mounting rod 506. The mounting motor 507 is fixedly connected to one side of the outer surface of the mounting box 504. The other mounting gear 505 is fixedly sleeved on the output end of the mounting motor 507. The two mounting gears 505 mesh with each other.

[0035] In this embodiment: by turning on the mounting motor 507, the mounting motor 507 drives one of the mounting gears 505 to rotate. Through the meshing of the two mounting gears 505, the mounting rod 506 drives the adjusting plate 503 to rotate, thereby driving the clamping component to rotate. The principle and structure of the mounting motor 507 are common knowledge to those skilled in the art and will not be described in detail here. Its model can be selected according to the actual use.

[0036] Specifically, each clamping component includes a fixed box 508, a fixed motor 509, a bidirectional threaded rod 510, two limiting rods 511, and two clamping plates 512. The bottom of the fixed box 508 is fixedly connected to the top of the adjusting plate 503. The bidirectional threaded rod 510 is rotatably connected between the inner walls of both sides of the fixed box 508. The fixed motor 509 is fixedly connected to the outer surface of one side of the fixed box 508, and one end of the fixed motor 509 is fixedly connected to one end of the bidirectional threaded rod 510. Both ends of the two limiting rods 511 are fixedly connected between the inner walls of both sides of the fixed box 508. Each clamping plate 512 is threaded onto the outer surface of the bidirectional threaded rod 510, and both clamping plates 512 are slidably sleeved between the two limiting rods 511.

[0037] In this embodiment: the fixed motor 509 drives the bidirectional threaded rod 510 to rotate, and the two clamping plates 512 are moved by the limiting rods 511. The position of the two clamping plates 512 can be adjusted, so that the auxiliary mechanism 5 can be installed in a suitable position. The principle and structure of the fixed motor 509 are common knowledge to those skilled in the art and will not be described in detail here. Its model can be selected according to the actual use.

[0038] The following describes in detail the test method of the vehicle-mounted DC high voltage withstand voltage test system provided in the embodiments of the present invention. The method of use includes the following steps: Step 1, moving the test device 4: When it is necessary to move the test device 4, turn on the fixed motor 509, and drive the bidirectional threaded rod 510 to rotate through the fixed motor 509. Through the limiting of the two limit rods 511, the two clamping plates 512 are clamped on the support rod 6. At this time, fix the clamping component on the other end of the electric telescopic rod 501 to the tank transport vehicle. Use a forklift as the power source. The auxiliary mechanism 5 acts as a traction support connected to the forklift. The moving wheels 8 are used to meet the short-distance movement within the station. Step 2, Supporting the test device 4: After transporting the test device 4 to the site, adjust the two clamping plates 512 to clamp onto the support rod 6 by fixing the motor 509. Then turn on the installation motor 507. The installation motor 507 drives one of the installation gears 505 to rotate. Through the meshing of the two installation gears 505, the installation rod 506 drives the adjusting plate 503 to rotate, thereby driving the clamping component to rotate and supporting the clamping component on the ground. Install the four auxiliary mechanisms 5 on the support rod 6 respectively. Adjust the height of the test device 4 by the electric telescopic rod 501 to support the fixed frame 1 to a height greater than that of the transport chassis. Drive away the installation tank transport vehicle. Then retract the electric telescopic rod 501. The retracted height is greater than the height of the moving wheel 8 so that the moving wheel 8 does not bear the torque of the DC device tipping over. Step 3: Adjusting the test device 4: Then, turn on the cylinder 305. With the cooperation of the mounting plate 306, the cylinder 305 pushes the fixed plate 301, support frame 302 and support plate 309. Through the connecting rod 312, rotate on the two connecting plates 311. When the test device 4 is flipped to 10°~15°, inflate the inflatable equalizing ring 9. After the inflatable equalizing ring 9 is inflated, raise the equipment to 90°. Fix the support plate 309 to one of the support blocks 7 with bolts. Then remove the fixing bolt 308 and the mounting bolt 310. The cylinder 305 places the fixed plate 301 and support frame 302 in a horizontal state, ready for wiring and entering the test state. Place the object to be tested in the fixed plate 301. Then adjust the auxiliary mechanism 5 to clamp at any position of the support frame 302. Through the cooperation of the electric telescopic rod 501 and the clamping plate 512, the object to be tested can be limited and fixed.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle-mounted DC high-voltage withstand voltage test system, characterized in that, include: Fixture (1); Adjustment mechanism (3), which is mounted on the fixed frame (1); Test apparatus (4), said test apparatus (4) is mounted on adjustment mechanism (3); An inflatable equalizing ring (9) is fixedly connected at the bottom to the top of the test device (4); A support component, which is mounted on a fixed frame (1); as well as The auxiliary mechanism (5) is provided in multiple sets, and the multiple sets of the auxiliary mechanism (5) are respectively provided on the support component, the fixed frame (1) and the adjustment mechanism (3).

2. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 1, characterized in that, The adjustment mechanism (3) includes an installation component, two sets of pushing components and two sets of linkage components. The installation component is mounted on the fixed frame (1), and each set of pushing components and linkage components is mounted on the installation component.

3. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 2, characterized in that, The mounting components include a fixed plate (301), two connecting plates (311), a connecting rod (312), two mounting bolts (310), two support frames (302), and a support plate (309). The bottom of each connecting plate (311) is fixedly connected to the top of the fixed frame (1). The connecting rod (312) is rotatably connected between the two connecting plates (311). The support plate (309) is fixedly sleeved on the outer surface of the connecting rod (312). One end of the test device (4) is fixedly connected to the outer surface of one side of the support plate (309). The fixed plate (301) is rotatably sleeved on the outer surface of the connecting rod (312). Each mounting bolt (310) passes through the fixed plate (301) and the connecting rod (312). The bottom of each support frame (302) is fixedly connected to the bottom of the fixed plate (301).

4. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 3, characterized in that, Each set of the pushing components includes a mounting block (303), two rotating plates (304) and a cylinder (305). The bottom end of the mounting block (303) is fixedly connected to the top of the fixing frame (1). The two rotating plates (304) are fixedly connected to both ends of the cylinder (305). One of the rotating plates (304) is rotatably connected to the mounting block (303), and the other rotating plate (304) is rotatably connected to the support frame (302).

5. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 4, characterized in that, Each set of linkage components includes two connecting blocks (307), a fixing bolt (308), and a mounting plate (306). One end of one of the connecting blocks (307) is fixedly connected to one side of the outer surface of the support plate (309), and one end of the other connecting block (307) is fixedly connected to one side of the outer surface of the support frame (302). One end of the mounting plate (306) is rotatably connected to one of the connecting blocks (307), and the other end of the mounting plate (306) is rotatably connected to the other connecting block (307) through the fixing bolt (308).

6. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 5, characterized in that, The support component includes four support blocks (7), two support rods (6) and two moving wheels (8). The bottom of each support block (7) is fixedly connected to the top of the fixed frame (1), the two ends of each support rod (6) are fixedly connected between the inner walls of the two sides of the fixed frame (1), and each moving wheel (8) is rotatably connected between the inner walls of the two sides of the fixed frame (1).

7. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 6, characterized in that, Each set of auxiliary mechanisms (5) includes an electric telescopic rod (501), two sets of rotating components and two sets of clamping components. Each set of rotating components is located at both ends of the electric telescopic rod (501), and each set of clamping components is located on the rotating components.

8. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 7, characterized in that, Each set of rotating components includes a connector (502), an adjusting plate (503), a mounting box (504), two mounting gears (505), a mounting rod (506), and a mounting motor (507). One end of the connector (502) is fixedly connected to one end of the electric telescopic rod (501). The mounting rod (506) is rotatably connected between the inner walls of both sides of the connector (502). The adjusting plate (503) is fixedly sleeved on the outer surface of the mounting rod (506). One side of the mounting box (504) is fixedly connected to the outer surface of one side of the connector (502). One of the mounting gears (505) is fixedly sleeved on the outer surface of the mounting rod (506). The mounting motor (507) is fixedly connected to the outer surface of one side of the mounting box (504). The other mounting gear (505) is fixedly sleeved on the output end of the mounting motor (507). The two mounting gears (505) mesh with each other.

9. The vehicle-mounted DC high-voltage withstand voltage test system as described in claim 7, characterized in that, Each clamping component includes a fixed box (508), a fixed motor (509), a bidirectional threaded rod (510), two limiting rods (511), and two clamping plates (512). The bottom of the fixed box (508) is fixedly connected to the top of the adjusting plate (503). The bidirectional threaded rod (510) is rotatably connected between the inner walls of both sides of the fixed box (508). The fixed motor (509) is fixedly connected to the outer surface of one side of the fixed box (508), and one end of the fixed motor (509) is fixedly connected to one end of the bidirectional threaded rod (510). Both ends of the two limiting rods (511) are fixedly connected between the inner walls of both sides of the fixed box (508). Each clamping plate (512) is threaded onto the outer surface of the bidirectional threaded rod (510), and both clamping plates (512) are slidably sleeved between the two limiting rods (511).

10. A test method for a vehicle-mounted DC high-voltage withstand voltage test system, applied to the vehicle-mounted DC high-voltage withstand voltage test system as described in claim 9, characterized in that, Includes the following steps: S1, Mobile test device (4): When the mobile test device (4) is needed, turn on the fixed motor (509), drive the bidirectional threaded rod (510) to rotate through the fixed motor (509), and through the limit of the two limit rods (511), make the two clamping plates (512) clamped on the support rod (6). At this time, fix the clamping part on the other end of the electric telescopic rod (501) to the tank transport vehicle. Use a forklift as the power source, and the auxiliary mechanism (5) acts as a traction support connected to the forklift. The short-distance movement within the station is satisfied through the moving wheels (8). S2, Support test device (4): After transporting the test device (4) to the site, adjust the two clamping plates (512) to clamp on the support rod (6) by fixing the motor (509), and then turn on the installation motor (507). The installation motor (507) drives one of the installation gears (505) to rotate. Through the meshing of the two installation gears (505), the installation rod (506) drives the adjustment plate (503) to rotate, thereby driving the clamping component to rotate, so that the clamping component is supported on the ground. Install the four auxiliary mechanisms (5) on the support rod (6) respectively. Adjust the height of the test device (4) by the electric telescopic rod (501) to support the fixed frame (1) to a height greater than the transport chassis. Drive away the installation tank transport vehicle, and then retract it by the electric telescopic rod (501). The retracted height is greater than the height of the moving wheel (8), so that the moving wheel (8) does not bear the torque of the DC device overturning. S3, Adjusting the test device (4): Then turn on the cylinder (305). With the cooperation of the mounting plate (306), the cylinder (305) pushes the fixed plate (301), support frame (302) and support plate (309). Through the connecting rod (312), it rotates on the two connecting plates (311). When the test device (4) is flipped to 10°~15°, the inflatable equalizing ring (9) is inflated. After the inflatable equalizing ring (9) is inflated, the equipment is raised to 90°. The support plate (306) is then secured with bolts. 09) Fix it on one of the support blocks (7), then remove the fixing bolt (308) and the mounting bolt (310). The cylinder (305) places the fixing plate (301) and the support frame (302) in a horizontal state, ready to connect the wires, enter the test state, place the object to be tested in the fixing plate (301), and then adjust the auxiliary mechanism (5) to clamp at any position on the support frame (302). Through the cooperation of the electric telescopic rod (501) and the clamping plate (512), the object to be tested is limited and fixed.

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